/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.ray.streaming.state.keystate.state;

import java.util.List;

/**
 * ListState interface.
 */
public interface ListState<T> extends UnaryState<List<T>> {

  /**
   * add the value to list
   *
   * @param value the new value
   */
  void add(T value);

  /**
   * update list state
   *
   * @param list the new value
   */
  void update(List<T> list);
}
